Someone must have already done this.

[GEOSoft]

I've done my testing.

Martin, that's an interesting concept but since this is a color picker the change needs to be pretty much instantaneous. I might still be able to do something with it though.

For the others that tried using contrasting colors. That concept will fail on certain colors, some shades of yellow make it particularily noticable.

I pretty much have to stay with black and white by the looks of it, and that is just fine.

Right now I'm using that really ugly one that I did and it's doing everything that's required, it sets the text to white on dark colors and to black on lighter colors. So far it has not given me a problem on any color but I can pretty much figure that sooner or later I'll hit one that isn't quite right.

As for GDIP, not a chance that I'm going to #include a library like that for such a simple function as this when it's not used anyplace else in the app. I'm not a big GDIP fan anyway and try to avoid it, although there was one point quite a while back when I did think of using it in this picker.